diff --git a/gnu/usr.bin/groff/tmac/mdoc.local b/gnu/usr.bin/groff/tmac/mdoc.local
index 2ea634a94ff..447cf3bc749 100644
--- a/gnu/usr.bin/groff/tmac/mdoc.local
+++ b/gnu/usr.bin/groff/tmac/mdoc.local
@@ -47,6 +47,7 @@
 .ds doc-str-Lb-libipx      IPX Address Conversion Support Library (libipx, \-lipx)
 .ds doc-str-Lb-libkiconv   Kernel side iconv library (libkiconv, \-lkiconv)
 .ds doc-str-Lb-libmd       Message Digest (MD4, MD5, etc.) Support Library (libmd, \-lmd)
+.ds doc-str-Lb-libmemstat  Kernel Memory Allocator Statistics Library (libmemstat, \-lmemstat)
 .ds doc-str-Lb-libnetgraph Netgraph User Library (libnetgraph, \-lnetgraph)
 .ds doc-str-Lb-libpmc      Performance Monitoring Counters API (libpmc, \-lpmc)
 .ds doc-str-Lb-librpcsvc   RPC Service Library (librpcsvc, \-lrpcsvc)